Joint arm awning

ABSTRACT

In a joint arm awning comprising joint arms disposed on a support pipe, with an awning fabric extending between a drop-out pipe and a fabric roll which is disposed on a fabric roll shaft and with the portion of the fabric roll and the drop-out pipe being covered by a cover when the drop-out pipe is retracted, it is provided that the cover is corrugated or ribbed or serrated cross-sectionally and longitudinal grooves thus formed are substantially parallel to the support pipe.

BACKGROUND OF THE INVENTION

[0001] 1. Field of the Invention

[0002] The invention relates to a joint ann awning comprising joint arms disposed on a support pipe, with an awning fabric extending between a drop-out pipe and a fabric roll which is disposed on a fabric roll shaft and with the portion of the fabric roll and the drop-out pipe being covered by a cover when the drop-out pipe is retracted.

[0003] 2. Background Art

[0004] A joint arm awning of the generic type is known for instance from U.S. Pat. No. 5,839,491.

[0005] For protection of joint arm awnings in the retracted condition against environmental exposure and soiling, it is known to retract the awning fabric into a box which entirely encloses the arms, the fabric roll shaft and the joint arms in the retracted condition.

[0006] It is further known to provide rain-proof blinds which extend for instance in a curved cross-sectional configuration around the fabric roll shaft and the fabric roll, leaving an outlet aperture for the awning fabric. The underside of this blind is semi-circular, its diameter corresponding to the diameter of the rolled up fabric roll so that the awning fabric, when extracted, slides on the inside of the blind.

[0007] A drawback of these known covers resides in that a scraping effect is exercised on the surface of the fabric when it slides along the cover and dots of soil are distributed on the surface of the awning fabric. Furthermore, the known solutions have the drawback that rainwater falling down will be deviated not only forwards, but also backwards toward the wall of a house, giving rise to humidity and soiling.

SUMMARY OF THE INVENTION

[0008] It is an object of the invention on the one hand to avoid the technical drawbacks of conventional covers and on the other hand to create an optically attractive design which stands out also esthetically from known designs.

[0009] According to the invention, this object is attained in that the cover is corrugated or ribbed or serrated cross-sectionally and longitudinal grooves thus formed are substantially parallel to the support pipe. Preferably, the cover consists of stainless steel sheet.

[0010] In as much as the foregoing talks of a cover, this means a box-type cover as well as a rain-proof blind which only partially covers the awning.

[0011] The design according to the invention has the advantage that only rolling line contact of the awning fabric with the cover takes place, when the awning fabric slides on the inside so that the scraping effect on the surface of the fabric is reduced and tiny dirt particles deposit in the grooves.

[0012] Falling water does not flow off in a direction vertical of the fabric roll shaft toward the wall of a house and therefore does not splash on the wall, but is led away laterally through the concavities, or its flow is braked so that the water drops vertically downwards without contacting the wall of the house.

[0013] An especially attractive design is attained by the steel sheet embodiment. The ribbed or corrugated design has the additional effect of rigidifying the sheet so that steel sheet of comparatively little thickness can be used. The stainless steel can be used without a coating of paint, nevertheless defying weather. This is ideal in particular when the whole awning frame is designed for an appearance made of steel.

[0014] In keeping with an advantageous embodiment, it can be provided that reinforcement elements are disposed on the upper side of the cover at a distance from, and parallel to, each other, which overlap the cover and are fixed at the front in a groove of the cover.

[0015] Details of the invention will become apparent from the ensuing description of a preferred embodiment, taken in conjunction with the drawing.

BRIEF DESCRIPTION OF THE DRAWING

[0016] The drawing FIGURE is a sectional view through a joint arm awning with a cover according to the invention.

DESCRIPTION OF THE PREFERRED EMBODIMENT

[0017] An awning seen in the drawing comprises a support pipe 1 which is mounted on a wall of a house by means of wall mountings (not shown). Curved holders 2 are fixed to the support pipe 1 with a fabric roll shaft 3 being mounted thereon to be driven in rotation. An awning fabric roll (not seen in the drawing) is rolled up on the fabric roll shaft 3 and, via a piping groove 4, the free end of the awning fabric is connected to a drop-out pipe 5.

[0018] Furthermore, two joint aims 6 are mounted on the support pipe, their free outer ends being joined via bends 7 to the drop-out pipe.

[0019] Holders 8 are mounted on the support pipe 1, their upper side extending around the fabric roll shaft 3 concentrically thereof and at a distance therefrom. This is where a cover 9 is fixed, the underside of which rests on the upper side of the holders 8, correspondingly extending concentrically of the fabric roll shaft, whereas the upper side of the cover 9 reaches further forwards (to the right in the drawing) so that a passage 10 for the awning fabric is formed between the two ends of the cover 9. Caps 11 are placed laterally on the cover 9.

[0020] The cover 9 is serrated or corrugated so that convexities 12 and concavities 13 originate, running in the longitudinal direction of the fabric roll shaft 3.

[0021] As a result of the concavities 13 in the vicinity of the rear 14 of the cover 9, water cannot flow off unimpeded towards the wall of a house (to the left in the drawing), but is led off laterally or at least its flow is braked.

[0022] On the inside where the concavities 13 appear as projections, they ensure rolling line contact of the awning fabric and preclude surface friction, with particles on the awning fabric depositing in the concavities 13. 

What is claimed is:
 1. A joint arm awning comprising joint arms (6) disposed on a support pipe (1), with an awning fabric extending between a drop-out pipe (5) and a fabric roll which is disposed on a fabric roll shaft (3) and with the portion of the fabric roll and the drop-out pipe (5) being covered by a cover when the drop-out pipe (5) is retracted, wherein the cover (9) is corrugated or ribbed or serrated cross-sectionally and longitudinal grooves thus formed are substantially parallel to the support pipe (1).
 2. A joint arm awning according to claim 1 , wherein the cover consists of stainless steel sheet.
 3. A joint arm awning according to claim 1 , wherein reinforcement elements are disposed on the upper side of the cover (9) at a distance from, and parallel to, each other, which overlap the cover (9) and are fixed at the front in a groove of the cover (9). 